从现存的遗迹来看,除了庙宇和塔,西亚民族在建筑形式上对后世影响深远的一个创造就是()的发明。总的来说拱可以分成两种:( )和真拱。
乌尔的观象台是台阶式的,其主体是生土夯筑的。
A. 对
B. 错
Let us go to the next _______ on the agenda.
A. matter
B. debate
C. speech
D. item
Although she ______ the old pot thoroughly, she could not make it look completely clean.
A. scrubbed
B. washed
C. made
D. screwed